richardson



2 Sheets-Sheet 1';

(No Model.)

G. W'. RIUI-IARDSOlT.v

. STONE GONVEYER.

Patented Jan. 19, 1886.,

jzva zzi arf w' (No Model.) 2 Sheets-Sheet 2.

G. w. RICHARDSON. STONE QONVEYER.

No. 334,471. Patented Jan, 19, 1886.

e4 mum I J In WLUHIL:

G I Hi. ll I Y NITED STATES PATENT OFFICE.

GEORGE W. RICHARDSON, OF CHICAGO, I LLINOIS, ASSIGNOR TO JASON H. SHEPARD AND JOHN DALESE, BOTH OF SAME PLACE.

STONE-CONVEYE R.

SPECEPICATION forming part of Letters Patent No. 334,471, dated January 19, 1886.

Application filed June 9, 1885.

To all whom it may concern.-

Be it known that I, GEORGE W. RICHARD- soN, a citizen of the United States, and a resident of Chicago, county of Cook, and Stateof Illinois, have invented new and useful Improvements in Stone-Gonveyers, of which the following is a specification, reference being had to the accompanying drawings, illustrating the invention, in which Figure 1 is a perspective representation of a conveyer embodying my invention, the mid dle portion being broken away; Fig. 2, a plan view of a double conveyer-trough in section; Fig. 3, a broken side elevation of the lower portion of the conveyer; Fig. 4, a broken plan view of a portion of the conveyer and the track it runs on.

The purpose of the present invention here presented is to provide simple, durable, and convenient means for moving broken stone, coal, and like material from boats and cars to yards; but more especially to move broken paving-stone from crushers to any one of a number of bins which are on the line of the conveyer, and also to move two or more sizes of stone separately in the same conveyer and dump the two sizes into separate bins provided for that purpose. I accomplish this by an endless trough,which consists of aseries of jointed sections with swinging bottoms,which are pivoted to axles with wheels thereon to run on tracks, and are driven by sprocket-wheels, which carry the wheels on the shafts from one track to the other and propel them thereon, car- 5 rying the sectional trough continuously forward todeliverthestonetherein. Theswinging bottoms to the continuous trough are held from dumping the stone, except at the required bins, by means of supports connected with the lower track. The supports over the binsto receive the stone are made to slide from under the trough, so as to allow stone to be dumped before it arrives at the end of the lower section. A particular feature'ofthe invention consists 5 in the links which connect the trough-sections, forming the sides of the sections, and that one bottomis made to overlap the other far enough to hold them from turning down when the trough is moving on the upper section of the track.

Another feature is the double sprocket- Serial No. 168,174. (No model.)

wheels, which allow the sectional trough to operate between them, whereby the traveling wheels and their shafts may be connected with the bottoms of the sections. I prefer this method to that of connecting the sides with the bottoms and dumping the entire section, because it saves the material for the extra sides, and then there is less wear and friction in dumping the bottoms only of the sections than by the dumping of a whole section. The cost of construction is also less; but the section in either form can be run between the double sprocket-wheels and do better work than any carrying device now employed for a like purpose.

A A represent a substantial double track,

which is of such strength as will support the load of crushed stone thereon, and it is to be of any desired length, and in practice is elevated above the several bins into whichthe stone is to be dumped.

B B is the upper track, which is made only strong enough to support the empty portion of the trough thereon. The two tracks are supported on both sides of the machine by substantial frames 0 O, in which are formed the bearings for the journals D D of the double sprocket-wheels E E, E E, which may be of any desired size, but for handling stones three feet in diameter will serve the purpose, and which are provided with the projections F or indentations for engaging the axles or journals D D and carrying them around. The links which form the sides of the conveyersections are shown at G H, the links H being placed outside of the link G; but both set of links are drilled to form holes at each end to receive the journals D to form a continuous sectional conveyer, as shown. On the ends of journals D are attached the traveling wheels J, preferably by split keys, that they may be readily removed-for repairs, and the links G H are held to the journals by the same means. The bcari ngs for the wheels J should be turned down to form shoulders to hold them to the track. The bottoms K of the sectional trough are hinged to thejournals D at L. They are made to overlap each other, so as not to fall down while moving over the upper track. At N the corners of the upper track are shown to be rounded over, that the wheels J J J, 820.,

may be brought from the sprocket-wheels to the upper track and from the said track to the sprocketwheels at the other end of the machine onto the upper track and off from it.

To prevent in very heavy machines the seetional trough from sagging away from the sprocket-wheels in their passage to the upper track, the lower track at M is curved up, as shown at Fig. 1; and to prevent the bottoms K from swinging out too far in their movement on the sprocket-wheels a stop, P, or morennay be placed at the end of the machine for the bottoms to bear against, and an antii'riction roller may be pivoted to the stop to obviate wear, as shown at a,- but as these hottoms are light and strong. any device which, placed at either end of the machinewill keep them shut when passing on the tracks, except when they are to be dumped, will fully serve the purpose. The conveyer can be run in either direction, depending on which way the bottoms overlap. In the present case the conveyer runs to the left on the track A. Should the eonveyer be made to run to the right. the dumping deriees in the lower track should be reversed. In this connection it is well to state that the bottoms K may be hung to shafts or journals by a lock-joint, which will prevent them from swinging out of place, and yet permitthem to have incline enough to dump stone. To prevent the bottoms K from dumping the stone till the conveyer reaches a bin, a crossbar, It, is placed across the bed of the lower track, and on it one end of a stationary support. S, is placed, the other end of the support having a seat on the end of the track.

it is a long distance from the crusher to the first bin, extra cross-bars may be employed to support the part S, and,if desirable, anti-frietion rollers may be thickly placed on the top of the support S to lessen friction.

To support the bottoms K and allow them to be dumped, sliding supports T, as many as may be necessary, are made to run through the bed of the lower track, A, and their inner end when pushed in support the bottoms K, but when drawn out allow the bottoms to dump the stone thereon.

'lo lessen friction I prefer to have rollers pivoted to their upper ends, as shown at U. For obvious reasons the working parts of the machine should be made of iron of such proportions as to withstand the strain and wear thereon.

I claim as my invention 1. A conveyor for carrying stone and other like material, the double track A A B B, in combination with the section-conveyor and the double sprocket-wheel E E, set a suitable distance apart for the free passage of the sectional conveyer, each section of which is provided with a dumpingbottom, as and for the purpose specified.

2. The conveyer composed of swinging bottoms K, hung to the journals D, and the sides G H, also hung to the said journals, forming a continuous trough over track A A, as specified.

3. The continuous conveyer, combined with the two-part sprocket-wheels E E, E E,traveling wheels J, bottom-supp rt S R, and sliding supports T, curved track M, to guide the sectional conveyer from the sprocket-wheels to the upper track and from the track to the sprocket-wheels at the opposite end of the track, as and for the purpose specified.

GEORGE XV. RlCIIARDSON.

Vitnesscs:

G. L. GHAPIN, J. H. SHEPARD. 

